Lenovo System x3250 M4 - Thermal Grease

1.Slidetheserverintotherack.
2.Reconnectthepowercordsandcablesthatyouremoved.
3.Turnonallattacheddevicesandtheserver.
Thermalgrease
Thethermalgreasemustbereplacedwhenevertheheatsinkhasbeenremovedfromthetopofthe
microprocessorandisgoingtobereusedorwhendebrisisfoundinthegrease.Usethisinformationto
replacedamagedorcontaminatedthermalgreaseonthemicroprocessorandheatsink.
Whenyouareinstallingtheheatsinkonthesamemicroprocessorthatitwasremovedfrom,makesure
thatthefollowingrequirementsaremet:
•Thethermalgreaseontheheatsinkandmicroprocessorisnotcontaminated.
•Additionalthermalgreaseisnotaddedtotheexistingthermalgreaseontheheatsinkandmicroprocessor.
Notes:
•Readthesafetyinformationin“Safety”onpagev.
•Readthe“Installationguidelines”onpage33.
•Read“Handlingstatic-sensitivedevices”onpage35.
Toreplacedamagedorcontaminatedthermalgreaseonthemicroprocessorandheatsink,completethe
followingsteps.
Step1.Placetheheatsinkonacleanworksurface.
Step2.Removethecleaningpadfromitspackageandunfolditcompletely.
Step3.Usethecleaningpadtowipethethermalgreasefromthebottomoftheheatsink.
Note:Makesurethatallofthethermalgreaseisremoved.
Step4.Useacleanareaofthecleaningpadtowipethethermalgreasefromthemicroprocessor;then,
disposeofthecleaningpadafterallofthethermalgreaseisremoved.
Microprocessor
0.02 mL of thermal
grease
Figure59.Thermalgreaseonmicroprocessor
Step5.Usethethermal-greasesyringetoplace9uniformlyspaceddotsof0.02mLeachonthetopof
themicroprocessor.Theoutermostdotsmustbewithinapproximately5mmoftheedgeofthe
microprocessor.Thisistoensureuniformdistributionofthegrease.
Chapter6.Removingandreplacingcomponents197